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Duration 21 hours
Course Outline
Introduction to Stalwart
- Overview of Stalwart and its design philosophy
- Architectural benefits of a single Rust binary
- Comparative analysis with traditional mail stacks
- Licensing models: AGPL-3.0 and Enterprise
Installation and Initial Configuration
- Review of system requirements and supported platforms
- Deployment using Docker and Docker Compose
- Direct installation on Linux via binary
- Selecting the appropriate database backend
- Guided setup via bootstrap mode and the configuration wizard
Core Protocols and DNS Setup
- Configuring SMTP for both inbound and outbound mail
- Setting up IMAP4 and JMAP for mail access
- Enabling POP3 for legacy client compatibility
- Configuring DNS records: MX, SPF, DKIM, and DMARC
- Implementing automated DKIM key rotation
Security and Authentication Frameworks
- Implementing TLS with ACME certificate automation
- Utilizing DANE and MTA-STS for transport security
- Configuring authentication backends: internal, LDAP, OIDC, and SQL
- Integrating OAuth 2.0 and two-factor authentication
- Defining access control lists and permissions
- Applying rate limiting and automated IP blocking
Spam and Phishing Defense
- Understanding the built-in spam filter architecture
- Leveraging AI and LLM-based classification
- Using statistical Bayesian classifiers
- Integrating DNS blocklists and Pyzor
- Employing greylisting and spam traps
- Mitigating phishing and homographic attacks
Storage and Search Infrastructure
- Choosing storage options: RocksDB, PostgreSQL, MySQL, or SQLite
- Utilizing cloud blob storage via S3 and Azure
- Enhancing performance with Redis caching
- Implementing full-text search using built-in or external engines
Collaborative Services
- Managing CalDAV and JMAP Calendars
- Handling CardDAV and JMAP Contacts
- Utilizing WebDAV for file storage
- Implementing sharing features with ACLs and JMAP Sharing
Multi-Tenancy and User Administration
- Enforcing domain and tenant isolation
- Managing user accounts and groups
- Configuring mailing lists and aliases
- Setting up subaddressing and catch-all addresses
- Defining disk quotas for users and tenants
Administration and Monitoring Tools
- Using the WebUI dashboard and statistical reports
- Scripting and automation via CLI
- Managing the SMTP queue
- Collecting metrics with OpenTelemetry and Prometheus
- Automating events via Webhooks
Clustering and High Availability
- Coordinating peer-to-peer clusters
- Implementing clustering with Kafka and Redis
- Configuring read replicas and sharded storage
- Deploying on Kubernetes
- Designing for fault tolerance
Advanced Configuration Techniques
- Writing scripts in the Sieve language
- Integrating MTA hooks and milters
- Defining routing rules and virtual queues
- Applying envelope rewriting
Migration and Integration Strategies
- Migrating from Postfix and Dovecot
- Migrating from Microsoft Exchange
- Configuring Autoconfig and Autodiscover
- Automating DNS management
- Executing API-driven declarative deployments
Requirements
- Proficiency with the Linux command line
- Fundamental knowledge of DNS concepts
- Basic understanding of email principles is beneficial, though not mandatory
Target Audience
- System administrators
- DevOps and platform engineers
- IT infrastructure specialists
- Professionals responsible for or planning self-hosted email deployments
Custom Corporate Training
Training solutions designed exclusively for businesses.
- Customized Content: We adapt the syllabus and practical exercises to the real goals and needs of your project.
- Flexible Schedule: Dates and times adapted to your team's agenda.
- Format: Online (live), In-company (at your offices), or Hybrid.
Price per private group, online live training, starting from 4350 € + VAT*
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